The German company Feldherr makes foam inserts for game boxes with dozens available already. They now have announce their plan to make a foam insert for ISS Vanguard. If you might be interested in this, you can sign up on their site to be notified when the foam insert is announced (plus get a 5 Euro discount). Click on their logo to jump to their info page:
As an example, here is the foam insert for Awaken Realms Nemesis:
My ISS Vanguard 
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